[ 1819.264120] br0: port 1(dummy0) entered blocking state
[ 1819.264186] br0: port 1(dummy0) entered disabled state
[ 1819.264219] dummy0: entered allmulticast mode
[ 1819.264265] dummy0: entered promiscuous mode
[ 1819.267735] br0: port 1(dummy0) entered blocking state
[ 1819.267800] br0: port 1(dummy0) entered forwarding state
[ 1819.518723] dummy0: left allmulticast mode
[ 1819.518764] dummy0: left promiscuous mode
[ 1819.518795] br0: port 1(dummy0) entered disabled state